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Abstract

The aim of this study was the investigation of the breeding season effect on the kinematic and main spermatological parameters of the rams from Synthetic Population Bulgarian Milk sheep breed (SPBM), new Bulgarian breed certificated in 2005. The experiment was carried out with seven rams. Two...

Author(s)
Abadjieva, D.; Chervenkov, M.; Stefanov, R.; Metodiev, N.; Kistanova, E.; Kacheva, D.; Raycheva, E.
Publisher
Agricultural Academy - Bulgaria, Sofia, Bulgaria
Citation
Bulgarian Journal of Agricultural Science, 2014, 20, 4, pp 967-972
Abstract

Transition metal ions, mainly iron, are involved in the generation of highly reactive hydroxyl radicals, which are the most powerful inducers of oxidative damage to all biomolecules. The lipids in sperm membranes are highly susceptible to oxidation. Sperm lipid peroxidation (LPO) leads to decrease...

Author(s)
Nenkova, G.; Stefanov, R.; Chervenkov, M.; Alexandrova, A.
Publisher
Wiley-Blackwell, Copenhagen, Denmark
Citation
Cell Biochemistry and Function, 2016, 34, 6, pp 423-428
AbstractFull Text

The sperm production of bulls from the autochthonous Rhodope Shorthorn cattle breed was studied. The breed is among the smallest in Europe, the average weight of the cows ranging from 200 to 250 kg, and of the bulls from 330 to 370 kg. It was found that during the first 6 months from the start of...

Author(s)
Malinova, R.; Nikolov, V.
Publisher
Faculty of Agriculture, Zagreb, Croatia
Citation
Journal of Central European Agriculture, 2015, 16, 2, pp 47-53
Abstract

Studies have been conducted on the protection mechanism of selected by chromatography seminal plasma proteins on the molecular changes of the plasma membrane (PM), motility and survival rate of ram sperm in order to develop an effective biotechnology for artificial insemination (IS). By fixed three ...

Author(s)
Dimov, G.; Ivanova, M.; Tanev, L.
Publisher
Agricultural Academy, Sofia, Bulgaria
Citation
Zhivotnov'dni Nauki, 2011, 48, 2, pp 14-25
AbstractFull Text

There are scanty data concerning studies on the gametes of the new created breed "Bulgarian Murrah" in the field of morphofunctional and electron-microscopy studies. For the purpose of the present study we used buffalo bull sperm received from donors on different ages during different seasons. The...

Author(s)
Kacheva, D.; Ivanova-Kicheva, M.; Koleva, J.; Shumkov, K.
Publisher
Lesotekhnicheski Universitet, Sofia, Bulgaria
Citation
Sbornik dokladi ot nauchnata konferentsiya: Traditsii i s'vremenhost v'v veterinarnata meditsina, 2008, pp 63-72
Abstract

Ejaculate volume, percentage sperm motility, sperm concentration and the number of non-motile spermatozoa were studied in 5 Bulgarian Murrah buffalo bulls (aged 36 months) at the Artificial Insemination Station in Shoumen, Bulgaria. Semen was collected twice weekly with artificial vagina at...

Author(s)
Kolev, S.; Dimov, K.
Citation
Bulgarian Journal of Agricultural Science, 1998, 4, 6, pp 809-813
Abstract

Three systems of AI organisation were compared. The 1st system had been used in Bulgaria for many years; the remaining 2 were introduced 6 yr ago to serve the new large-scale sheep farms. In the 1st system, a "local insemination laboratory" serving 1000-2000 ewes collected semen from up to 6 rams...

Author(s)
Zlatarev, S. T.
Publisher
University of Illinois, Urbana, USA
Citation
10th International Congress on Animal Reproduction and Artificial Insemination, June 10-14 1984, University of Illinois at Urbana-Champaign, Illinois, USA. Volume II. Brief communications., 1984, Paper No. 218, pp 3 pp.

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